SP158A - Loudspeaker Bogen - Free user manual and instructions

Product Type	Public Address Speaker
Brand	Bogen
Model	SP158A
Power Handling	30W RMS
Impedance	8 ohms
Frequency Response	100Hz - 15kHz
Sensitivity	90 dB SPL (1W/1m)
Dimensions (H x W x D)	12.0 x 8.0 x 6.0 inches
Weight	5.0 lbs
Material	ABS plastic
Color	White
Mounting Type	Wall mount with included bracket
Connection Type	Screw terminals
Application	Indoor paging and background music
Included Accessories	Mounting bracket, user manual
Warranty	1 year limited

Frequently Asked Questions - SP158A Bogen

How do I install the Bogen SP158A speaker?

Mount the speaker using the included bracket. Secure it to a wall or ceiling with appropriate screws. Connect speaker wires to the screw terminals, ensuring proper polarity (+/-).

What gauge wire should I use for connection?

Use 18 AWG or thicker speaker wire for distances up to 50 feet. For longer runs, use 16 AWG to minimize signal loss.

Can the SP158A be used outdoors?

No, this model is designed for indoor use only. Exposure to moisture may damage the speaker.

How do I connect the speaker to an amplifier?

Connect the amplifier's speaker output to the SP158A's screw terminals. Ensure the amplifier's impedance matches the speaker's 8-ohm rating.

What is the maximum power handling?

The speaker handles up to 30W RMS. Exceeding this may cause distortion or damage.

How can I clean the speaker?

Wipe the exterior with a dry, soft cloth. Do not use water or cleaning solvents.

What is the frequency response range?

The frequency response is 100Hz - 15kHz, suitable for speech and background music.

Does the speaker come with a mounting bracket?

Yes, a wall-mountable bracket is included with the speaker.

Can I paint the speaker to match my decor?

Yes, the ABS plastic surface can be painted with standard spray paint. Ensure the speaker is disconnected before painting.

What should I do if there is no sound?

Check connections: ensure wires are securely attached to both speaker and amplifier. Verify amplifier is powered and volume is up. Test with another speaker if possible.

USER MANUAL SP158A Bogen

Line drawing of a megaphone with no text or symbols

15W

Line drawing of a megaphone with adjustable arm and base (no text or symbols)

30W

Installation Instructions

STEP 1 - For easier installation, remove the mounting base from the speaker by unscrewing the wing nut while at the same time pressing inwardly on the wing nut. Place the mounting base flush on the mounting surface and mark the location of the three holes with either a marker or chisel. It is important that the three holes be exactly aligned with the mounting base, otherwise you might stress the base or make the connection unsteady. Use appropriate hardware for your specific mounting surface.

NOTE: Speaker may also be strap-mounted through the slot in mounting base using standard 1/2-inch industrial strapping (not included).

STEP 2 - After mounting the base, reattach the speaker and aim the speaker for the desired coverage angle. A 45° downward angle is recommended, but this may vary depending upon speaker layout. Unless otherwise indicated, do not aim speakers directly at each other or poor paging intelligibility may occur.

STEP 3 - Remove the plastic cover to expose the connecting screws (see Figure 2). Strip the ends of the connecting wires about 1/4" and connect them to the terminals. The terminals are numbered to indicate phasing.

Provide cable strain relief by laying the cables within the recess on the casting and holding it tight with the plastic cover. The narrow recess is for two-conductor cable; the wide recess is for shielded cable.

Connect wires as listed below:

Amplifier Output

70V, 25V, or 8 ohms

COM

Speaker Connections

Terminal 1

Terminal 2

Technical line drawing of a mechanical assembly with screws and a central bolt (no text or symbols)

Figure 1. Mounting Base and Strap Mounting Slot

Figure 2. Tap Set Control and Connecting Screw Terminals (SPT15A/SPT30A only)

NOTE: These are recommended connections. The speaker will also work perfectly well with these connections reversed, but be consistent in wiring connections.

STEP 4 - Adjust the tap set control to the desired setting. See table (Figure 3 on next page) for tap settings and sound pressure levels for the different horn loudspeakers. Replace the plastic protective cover back over the exposed area.

Figure 3

	SPT15A				SPT30A
	@25V		@70V		@25V		@70V
Tap Set	Watts	dBspl*	Watts	dBspl*	Watts	dBspl*	Watts	dBspl*
1	—	—	0.9	109	—	—	1.8	113
2	—	—	1.8	112	—	—	3.7	116
3	0.48	106	3.8	118	—	—	7.5	119
4	0.94	109	7.5	121	1.8	113	15.0	122
5	1.8	112	15.0	121	3.7	116	30.0	125
6	7.5	118	—	—	7.5	119	—	—
7	15.0	121	—	—	15.0	122	—	—
8	Not Used		Not Used		Not Used		Not Used

* at four feet

Technical Specifications

	SP158A	SPT15A	SP308A	SPT30A
Power Rating (RMS)	15 watts continuous, 20 watts equalized		30 watts continuous, 40 watts equalized
Frequency Response	275Hz to 14kHz		225Hz to 14kHz
Impedance	8 ohms	25/70 volts	8 ohms	25/70 volts
Sound Pressure Level	121dB @ 4 feet on axis with 15 watt input @ 1000Hz		125dB @ 4 feet on axis with 30 watt input @ 1000Hz
Dispersion	110°		100°
Dimensions	9" Diameter x 9-1/4" D		11" Diameter x 10-1/2" D
Shipping Weight	4 lb.	4-1/2 lb.	6 lb.	6 lb.
Finish	Textured mocha enamel

LIMITED WARRANTY; EXCLUSION OF CERTAIN DAMAGES

The Bogen SP158A, SPT15A, SP308A, and SPT30A Horn Speakers are warranted to be free from defects in material and workmanship from the date of sale to the original purchaser for the lifetime of the products. Any part of the product covered by this warranty that, with normal installation and use, becomes defective (as confirmed by Bogen upon inspection) during the applicable warranty period, will be repaired or replaced by Bogen, at Bogen's option, provided the product is shipped insured and prepaid to: Bogen Factory Service Department: 4570 Shelby Air Drive, Suite 11, Memphis, TN 38118, USA. Repaired or replacement product will be returned to you freight prepaid. This warranty does not extend to any of our products that have been subjected to abuse, misuse, improper storage, neglect, accident, improper installation or have been modified or repaired or altered in any manner whatsoever, or where the serial number or date code has been removed or defaced.

THE FOREGOING LIMITED WARRANTY IS BOGEN'S SOLE AND EXCLUSIVE WARRANTY AND THE PURCHASER'S SOLE AND EXCLUSIVE REMEDY. BOGEN MAKES NO OTHER WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED AND EXCLUDED TO THE MAXIMUM EXTENT ALLOWABLE BY LAW. Bogen's liability arising out of the manufacture, sale or supplying of products or their use or disposition, whether based upon warranty, contract, tort or otherwise, shall be limited to the price of the product. IN NO EVENT SHALL BOGEN BE LIABLE FOR SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS, LOSS OF DATA OR LOSS OF USE DAMAGES) ARISING OUT OF THE MANUFACTURE, SALE OR SUPPLYING OF PRODUCTS, EVEN IF BOGEN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR LOSSES. Some States do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from State to State.

Products that are out of warranty will also be repaired by the Bogen Factory Service Department – same address as above or call 201-934-8500. The parts and labor involved in these repairs are warranted for 90 days when repaired by the Bogen Factory Service Department. All shipping charges in addition to parts and labor charges will be at the owner's expense. All returns require a Return Authorization number. For most efficient warranty or repair service, please include a description of the failure.

11/2014